You TAPE your blades?
And you GLUE you rbaldes?
And you EPOXY your blades?

Heh, heh, I bet I could draw you a sketch or just where the tape, glue and epoxy are located on your blades. Been there, done that, got the frustration to go with it.
I got tired of buying blades at a wallet flattening rate, so I repaired the blades as best I could. I could afford new blades but I was such a lousy pilot that I could hardly reward my lousy piloting skills with new blades. So I repaired them knowing that I'd get new blades when I got better at flying.
But the repaired blades cause the tracking to go bad. And that causes the upper head to shake. And that causes the flybar to work really badly. And that leads to more collisions with earth bound objects. And blade clack. It's a vicious circle, isn't it?
AARGGGGHHH the frustration. And that is what pushed me to look into these little helis and write the article about how they work - and why a really good design makes us NUTS!!!

The Eflight CX series is a wonder of engineering. The blades don't fit as well as they did a couple of years ago because the mold dies are wearing out, but a little sandpaper where the upper blade mount pinches the head when you screw it together will allow the upper blades to pivot easily. It's not so bad. The heli is still a wonderful trainer. I can't say it's the best because I haven't tried the rest, but it is VERY upgradeable when you are ready. Until then, just go easy. Learn tail in hover. Learn nose in hover - then side in - then the other side. My frustration is not nose in, it's the transition from nose in to tail in and back. As a pilot I still suck. Maybe it's my destiny. But I like the CX well enough to go the full Sport Racer route (with a few changes in the name of weight saving).
And my sim is paying for itself slowly as I crash and burn on-screen.

Go easy and good luck. And ENJOY! It's a hobby, not an occupation.
Soloboss